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1997 GMC Savana 1500 5.7L Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 8/15/2006 5 Replies

the van came back in with the s.e.s light on with po172 and 175 stored. i checked spider for leakdown with return line blocked off. very slow and slight. with the van running fuel trims are. short terms b1 125 b2 127 long terms b1 110 b2 109 so the pcm is subt...

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  Related Documents & Media  1997 GMC Savana 1500

 
Message Closed w/FIX

car Vehicle Data

1997 GMC Savana 1500

VIN 1GDFG15R4V
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / FUEL INJECTION
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways
Misc.Conversion Van

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

1997 GMC Savana 1500

VIN 1GDFG15R4V
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / FUEL INJECTION
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways
Misc.Conversion Van

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)